Binder for loose-leaf books.



PATENTED JUNE 9, 1908.

0. G. VAN BUREN. I BINDER FOR LOOSE LEAF BOOKS.

APPLICATION FILED AUG. 20, 1907.

INVENTOr? y m z r6 WITNESSES AIIQQMEQ UNITED STATES PATENT oEEIoE.

oHEsTEE G. VAN BUREN, OF PEovo, UTAH.

BINDER FOR LOOSE-LEAF BOOKS.

Specification of Letters Patent.

Patented June 9, 1908.

Application filed. August 20, 1907. Serial No. 389,897.

To all whom it may concern:

Be it known that I, CHESTER G. VAN BU- REN, a citizen of the UnitedStates, and a resident of Provo, in the county of Utah and State ofUtah, have invented a new and Improved Binder for Loose Leaf Books, ofwhich the following is a'full, clear, and exact description.

The purpose of this invention is to rovide novel details of constructionfor a boo -binding device, that is specially well adapted for clampingthe loose leaves of a note book, sketches, clippings of printed matter,or any loose manuscript in leaf form, between suitable cover boards, ina manner which enables a small or large number of leaves to be quicklyand securely bound between the cover boards, and also permits theconvenient removal of one or more leaves from the book, as may bedesired.

The invention consists in the novel construction and combination ofparts, as is hereinafter described and defined in the appended claims.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference indicatecorresponding parts in all the views.

Figure 1 is a pers ective view of an open note book showing eatures ofthe invention applied thereon; Fig. 2 is an enlarged back edge view ofthe note book and a rear side view of a novel binding clamp thereon inclosed condition; Fig. 3 is a similar view of details to those shown inFig. 2, but showing said parts in o ened adjustment; Fig. 4 is a planview of t e leaf clamp shown inFigs. 2 and 3, seen in direction of thearrow as in Fig. 2; and Fig. 5 is a longitudinal sectional view of theback portiori' of the improved book-binding device, showing a multiplefolding clamping member applied for secura few leaves between the coverboards.

11 carrying into effect the features of novelty and utility thatconstitute the improvement, two flat rigid cover boards 10, 11 areprovided, having equal dimensions and rectangular contours. Twocorresponding transverse edges a, a. of the cover boards 10, 11 arehinged together by adjustable means, which permit the covers to beseparated or s aced apart at these transverse edges any egree wlthin thecapacity of said hinges; the latter, constituting a dominant feature ofthe invention, consist of novel details constructed and arranged asfollows. Two similar clamping bars 12, 12 are employed, each comprisinga flat metal strip of a suitable length, pro ortioned to the width ofthe cover boar s 10, 11, and said bars having lapped contact arecentrally pivoted together as at b, -so that their corresponding endsmay be s read apart and folded toward each other, as shown in Figs. 2and 3. Near their ends the opposite edges 0 of each clamping bar 12, 12are sloped, so as to gradually reduce the Width of said bars from ointsc thereon to points 0 near the pivot Two similar flattened clampingbands 13, 13 are mounted upon the lapped clam in bars 12, 12 one eachside of the pivot l3, t ese bands having such a relative longitudinalwidth that they will completely fold the bars 12, 12 upon each otherwhen the bands are slid from the points 0 toward and near to the points0, this resulting from an engagement of the bands 13 with the slopededges 0 on the clamping bars. At 0 poslte ends of the clam ing bars 12,12 a ange d is formed on eac one, these similar flanges projecting fromthe normally lower edges of said ends which are the lowermost ones ofthe pair of clamping bars. The flanges d, d are preferably embedded inthe transverse edge a on the lower cover board 10 and are theretosecured by rivets or other suitable means.

Upon the remaining ends of the clampingbars 12, 12, and whichrespectively trend outward and upward when said bars are diverged,flanges e, e are formed, which extend above the flanges (Z, (Z. Upon theouter side edge of each flange e an ear 6 is formed, said ears eachhaving a transverse perforation therein.

In the transverse edge a of the normally top, cover board 12 two notchesg are formed, wherein the flanges e and ears 6 maybe introduced. Apintle rod it, that is secured in the cover board 11, adjacent to thetransverse edge a thereon, is passed through the perforations in theears 6 when said rod is lnserted through the cover board 11, thushinging two ends of the lapped and pivoted clam ing bars 12, 12 by theirears 6 upon the cover oard 1 1.

It will be seen that a number of loose leaves A, arranged upon eachother and laid upon 'the cover board 10, may be secured thereupon at itsedge a. by folding the flanges e, e downu on the rear transverse edgesof the leaves 12 and then clamping them thereon by driving the bands 13,13 toward the ends of the bars 12, 12, it being understood that theforcin secured t flanges e, 6 had been elevated somewhat by an angulardivergence of the ends of the clamping bars, as re resented in Fig. 3.

When the s eets A are to be removed from the binder, this may be quicklyeffected by the bands 13 toward the center of the clamping bars 12 12and then spreading the ends of the latter apart, which will separate therear ends of the cover boards 10, 11.

Provision is made fol holding a few sheets of paper or other similarmatter in clamped condition between the cover boards 10, 11 to this enda plurality of liner-strips 14 are held connected together and arallelwith each other by tapes 14. ormally. the strips 14 are disposed asshown in Fig. 1, being aid u on the upper cover board 11 and hereto byan attachment of the ends of the tapes 14, as shown in said figure. Ifbut a few sheets of paper or the like are to be secured at the endsthereof between the cover boards for their protection, said sheets arearranged in pro er order on the cover board 10 and a suita le number ofthe strips 14 are placed one on top of another, until a proper thicknessof material is afforded, this tier of strips then being seated over theends of the lapped sheets of paper, and the clamping device is adjustedfor clampin the sheets and strips 14 upon the cover boar 10, as hasalready been fully described.

It is evident that any sheet material within the area of the coverboards 10, 11 may be quickly and securely clamped therebetween at onetransverse ed e thereof, thereby affording a temporary inding forprinted outtings, sketches, memoranda or other manu-' script matter,which is neat, convenient to adjust and that may be produced at moderatecost.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent:

1. The combination with two cover boards,

of two clamping bars lapped crosswise and ivoted together at the1rcenters, clasping hands on the clam ing bars, adapted for closing themtowar each other edgewise, and means for connecting the ends of' saidbars with corresponding ends of the cover boards.

2. The combination with two similar cover boards, of two clampin bars,each flat in the body and having the e es thereof sloped toward thecenters of the ars, said bars being lap ed to ether crosswise andpivoted togetiier at t eir centers, a flange on one end of each bar,projected laterally therefrorn'and secured on one end of a coverboard,perforated ears on the remaining ends of the clamping bars, a pintle rodengagin said ears m their perforations and secure upon the rear end ofthe other cover board, and two clasping bands mounted on the slopededges of the clamping bars.

3. In a temporary loose leaf binder of the character described, twocover boards, two crossed and pivoted clamping bars secured by the endsthereof upon one cover board and hinged at the remaining ends on theother cover board, and a series of filling stri s that may be placedupon each other an between the cover board at corresponding endsthereof, for pressure on material to be held between the cover boards.

In testimony whereof I have signed my name to this specification in thepresence of two subscribin witnesses.

CH STER G. VAN BUREN.

Witnesses:

WILLIAM GEORGE TALMAGE, JULIUS O. ANDERSEN.

